A. b." of the Seetio~'s Classification.) This conduit is constructed of highly glazed terra cotta, in sections two feet in length, with a tap joint on tile top and ends, and is bedded on a cast iron or terra eotta base plate. Its interior is fitted with iron frames, placed at suitable distances ap
The future of the electric telegraph
- Publisher
- Elsevier Science
- Year
- 1895
- Tongue
- English
- Weight
- 346 KB
- Volume
- 140
- Category
- Article
- ISSN
- 0016-0032
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